/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.nifi.processors.standard.ftp;

import org.apache.nifi.processor.exception.ProcessException;

/**
 * The standard interface for FTP server implementations.
 */
public interface FtpServer {

    /**
     * Starts the FTP server.
     * @throws ProcessException if the server could not be started.
     */
    void start() throws ProcessException;

    /**
     * Stops the FTP server.
     */
    void stop();

    /**
     * Returns the status of the FTP server.
     * @return true if the server is stopped, false otherwise.
     */
    boolean isStopped();

}
